Liquid dispenser



FIG. 1 is a front elevational view showing my new design for a liquid dispenser;

FIG. 2 is a rear elevational view thereof;

FIG. 3 is a top plan view thereof;

FIG. 4 is a bottom plan view thereof;

FIG. 5 is a side elevational view of the right side thereof; and

FIG. 6 is a reduced bottom perspective view thereof. 

The ornamental design for a liquid dispenser, substantially as shown. 